Question

    type-ssc

    A well 20m in diameter is dug 14m deep and the earth

    taken out is spread all around it to a width of 5m to form an embankment. The height of the embankment is.
    A 18.5m Correct Answer Incorrect Answer
    B 15m Correct Answer Incorrect Answer
    C 11.2m Correct Answer Incorrect Answer
    D 32.5m Correct Answer Incorrect Answer

    Solution

    Volume of embankment = Volume of well (volume of earth taken out) π (152-102) h = π×102×14 h =1400/125 =56/5 = 11.2m

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